Echovirus Antibodies ECHAB
|Method(s)||Semi-Quantitative Serum Neutralization|
One 5 mL gold (SST) top tube. Also acceptable: one plain red top tube or CSF.
1 mL serum at 2-8°C. (Min: 0.3 mL)
Separate serum from cells within 2 hours of collection. Acute and convalescent samples must be labeled as such; parallel testing is preferred and convalescent samples must be received within 30 days from receipt of acute samples. Please mark samples plainly as "ACUTE" or "CONVALESCENT."
Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles).
|CPTCode||86658 x 5|
|Preferred Specimen Collection Device(s)|
Echovirus 6: Less than 1:10
Echovirus 7: Less than 1:10
Echovirus 9: Less than 1:10
Echovirus 11: Less than 1:10
Echovirus 30: Less than 1:10
Interpretive Data: Single positive antibody titers of greater than or equal to 1:80 may indicate past or current infection. Seroconversion or an increase in titers between acute and convalescent sera of at least fourfold is considered strong evidence of current or recent infection.